YASKAWA iQpump1000 - Page 237

Pre-Charge
Complete via PID Feedback (Normal Acting PID)
PID
feedback
Output
frequency
“Pre-charge
Active”
Message &
Digital Output
(H2-0☐ = A4)
Run
command
b5-01 PID Select = 1 (Enabled) AND b5-09 Output Level Sel = 0 (Normal Character)
P4-01 Pre-charge Level
P4-02 Pre-charge Frequency
P4-03 Pre-charge Time
Figure 4.48 Pre-Charge Normal Acting PID
PID
feedback
Output
frequency
“Pre-charge
Active”
Message &
Digital Output
(H2-0☐ = A4)
Run
command
b5-01 PID Select = 1 (Enabled) AND b5-09 Output Level Sel = 1 (Rev Character)
P4-01 Pre-charge Level
P4-02 Pre-charge Frequency
P4-03 Pre-charge Time
Pre-Charge
Complete via PID Feedback (Reverse Acting PID)
Figure 4.49 Pre-Charge Inverse Acting PID
Low Water
digital input
(N.O.)
Output
frequency
“Pre-charge
Active”
Message &
Digital Output
(H2-0☐ = A4)
Run
command
P1-30 Low Water Digital Input = 0 (Normally Open)
Closed
P4-02 Pre-charge Frequency
P4-03 Pre-charge Time
Pre-Charge
Complete via “Low Water” Digital Input (N.O.)
Open
Figure 4.50 Pre-Charge via Low Water DI
4.7 Basic iQpump Setup and Application Preset Parameters
YASKAWA TOEP YAIP1W 01F YASKAWA AC Drive - iQpump1000 User Manual
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Start-Up Programming & Operation